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![]() ![]() THEN Subst' (f(i) = (n, n+1)(i)) 0 THEN EasyHyp THEN Subst' (f(j) = (n, n+1)(j)) 0 THEN EasyHyp THEN Unfold `flip` 0 THEN Reduce 0 THEN AutoBoolCase (i= ![]() ![]() THEN MoveToConcl -1 THEN AutoBoolCase (i= ![]() THEN MoveToConcl -1 THEN AutoBoolCase (j= ![]() |
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12. j = n+1 ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | 1 step |
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